Curler



March 94 G. BOCCAFOGLI 2,236,242

CURLER Filed uarch 2a, 1940 Z-Sheets-Sheet 2 By 8 f 1 A tibrney Patented Mar. 25, 1941 UNlTED STATES PATENT OFFICE Application March 28,

2 Claims.

This invention appertains to new and useful improvements in curlers, and more particularly to a curler for curling over the edge portion of various fabrics.

The principal object of the present invention is to provide a curler for various flexible sheet materials which will curl the edge portion of the material in such a manner that the curl will not become readily uncurled and which will not require stitching, adhesive or any other form of attaching means or substance.

Other objects and advantages of the invention Will become apparent to the reader of the following specification.

3 In the drawings:

Figure 1 represents a side elevational view of the apparatus shown mounted on a support, the latter being in section.

Figure 2 is a fragmentary top plan view showing the apparatus.

Figure 3 is a section on the line 3-3 of Figure 1.

Figure 4 is a perspective view of the tapered needle.

Figure 5 is a plan view of a piece of fabric curled at its edge portion.

Figure 6 is a section on the line 6-6 of Figure 5.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral 5 denotes an elongated, rectangularshaped box open at its bottom and closed at its top, this box having the top 6, side walls 1-8 and end walls 9. Extending beyond the end walls 9 are the flanges l0 and II which are secured to the supporting structure I2 by screws l3. A riser I4 is provided on the flange H and upon this is mounted the electric motor I5, the armature shaft [6 of which extends into the socket I1 being established by the set screw l9.

The curler form is generally referred to by numeral and consists of the vertically disposed plate 21 having the substantially horizontally disposed portion 22. The end portion of the horizontal portion. 22 is rolled to form the elongated substantially conical formation 23 which at its apex portion has a very small and constricted opening 24 through which material is 50 pulled in the direction of the arrow in Figure 1. As can be seen in Figure 1, the needle l8 extends into this conical formation 23 and terminates just inwardly of the opening 24. The needle assists in its rotation in curling the edge portion placement of the fabric from the forming cone23.

The plate 2| has the obliquely disposed slot 25 which can be bridged by the plate 26 through which the bolt 21 extends. This bolt 21 extends of the elongated tapered needle [8, connection of the fabric and at the same time prevents dis- 1940, Serial No. 326,541

from inside the box 5, through the wall 8 and plate 26 and is equipped with the wing nut 28. Obviously, the exact position of the conical formation 23 can be determined by setting the plate 21 with respect to the plate 26.

The top 6 of the box 5 has the opening 23 therein and upon this top 6 and over the opening 29 is mounted the shell 30 having hot air outlet openings 3| therein. This shell 30 is secured to the top 6 by screws or bolts 32 and has a lip 33 projecting from its top portion in a direction toward and over the conical form 23, to the end that this form 23 can nestle under the same, as suggested in Figure 3.

A gas or fuel supply line 34 extends into the box 5 and has the burner tip or tips 35 underlying the opening 29. Thus heat is transmitted to the chamber 36 in the shell 3ll by conductivity reaches the conical formation 23, this formation and the plate of which it is constructed preferably being of brass.

As shown in Figures 5 and 6, the fabric 31 can be of any form desired and can be fed through the opening 24 in conjunction with the needle l8 with the result that the curled edge 38 will be formed.

Obviously the tapered needle and the electric motor are employed to expedite production and obviously under certain conditions, the motor may be dispensed with and the apparatus operated by hand.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, {what claimed as new isl. A curler comprising a cone, said cone being open longitudinally and having a plate extension bent to define a depending apron, a supporting structure to Which the apron is attached, a rotary elementexteniding into the cone; and a heat drum rising from the supporting structure and against which the cone rests.

2. A curler comprising a cone, said cone being open longitudinally and having a plate extension bent to define a depending apron, a supporting structure to which the apron is attached, a rotary element extending into the cone, and a heat drum arising from the supporting structure and against which the cone rests, said apron being provided with a slot therein extending from one edge portion thereof, a bridge element traversing the slot and a securing element disposed through the bridge member and into the supporting structure.

GIOVANNI BOC'CAFOGLI. 

